The Oasis Junior Mailbox is a large capacity locking USPS approved mailbox. This security mailbox sets a new standard in mailbox design. The Large incoming patented hopper style door is designed to allow delivery of small to medium sized parcels. It is finished in a durable powder coating which is available in pearl gray, sand, black, white and bronze. The Oasis Standard In-ground or Bolt Mount Post can be used with any Oasis box. They are constructed of heavy gage steel, available in the same colors as the Oasis boxes, and are designed to be mounted in concrete. Comes with instructions.